Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.